S
M
T
W
T
F
S
30
78°
55°
31
76°
61°
1
78°
62°
2
68°
61°
3
81°
66°
4
81°
63°
5
78°
59°
6
71°
52°
7
77°
49°
8
77°
52°
9
80°
57°
10
83°
62°
11
76°
55°
12
76°
49°
13
75°
63°
14
71°
51°
15
69°
44°
16
76°
52°
17
80°
63°
18
78°
57°
19
68°
54°
20
66°
55°
21
67°
51°
22
64°
48°
23
62°
48°
24
59°
49°
25
62°
52°
26
64°
50°
27
64°
49°
28
63°
51°
29
65°
49°
30
65°
53°
1
67°
49°
2
66°
46°
3
62°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Brewster
Brewster's September 2026 forecast shows daily high temperatures ranging from 59° to 68°, with overnight lows between 46° and 55°. The average high for September is 64° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Brewster. See also: October | November | December.
